summaryrefslogtreecommitdiff
path: root/Build/source/libs/gmp/gmp-6.0.0/mpn/x86_64/atom/mul_1.asm
diff options
context:
space:
mode:
Diffstat (limited to 'Build/source/libs/gmp/gmp-6.0.0/mpn/x86_64/atom/mul_1.asm')
-rw-r--r--Build/source/libs/gmp/gmp-6.0.0/mpn/x86_64/atom/mul_1.asm143
1 files changed, 143 insertions, 0 deletions
diff --git a/Build/source/libs/gmp/gmp-6.0.0/mpn/x86_64/atom/mul_1.asm b/Build/source/libs/gmp/gmp-6.0.0/mpn/x86_64/atom/mul_1.asm
new file mode 100644
index 00000000000..d76a3d3b8c9
--- /dev/null
+++ b/Build/source/libs/gmp/gmp-6.0.0/mpn/x86_64/atom/mul_1.asm
@@ -0,0 +1,143 @@
+dnl AMD64 mpn_mul_1 optimised for Intel Atom.
+
+dnl Copyright 2003-2005, 2007, 2008, 2012, 2013 Free Software Foundation, Inc.
+
+dnl This file is part of the GNU MP Library.
+dnl
+dnl The GNU MP Library is free software; you can redistribute it and/or modify
+dnl it under the terms of either:
+dnl
+dnl * the GNU Lesser General Public License as published by the Free
+dnl Software Foundation; either version 3 of the License, or (at your
+dnl option) any later version.
+dnl
+dnl or
+dnl
+dnl * the GNU General Public License as published by the Free Software
+dnl Foundation; either version 2 of the License, or (at your option) any
+dnl later version.
+dnl
+dnl or both in parallel, as here.
+dnl
+dnl The GNU MP Library is distributed in the hope that it will be useful, but
+dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+dnl for more details.
+dnl
+dnl You should have received copies of the GNU General Public License and the
+dnl GNU Lesser General Public License along with the GNU MP Library. If not,
+dnl see https://www.gnu.org/licenses/.
+
+include(`../config.m4')
+
+C cycles/limb best
+C AMD K8,K9
+C AMD K10
+C AMD bd1
+C AMD bd2
+C AMD bobcat
+C AMD jaguar
+C Intel P4
+C Intel PNR
+C Intel NHM
+C Intel SBR
+C Intel IBR
+C Intel HWL
+C Intel BWL
+C Intel atom 17.3 this
+C VIA nano
+
+C The loop of this code is the result of running a code generation and
+C optimisation tool suite written by David Harvey and Torbjorn Granlund.
+
+define(`rp', `%rdi') C rcx
+define(`up', `%rsi') C rdx
+define(`n_param', `%rdx') C r8
+define(`v0', `%rcx') C r9
+
+define(`n', `%r11')
+
+ABI_SUPPORT(DOS64)
+ABI_SUPPORT(STD64)
+
+ASM_START()
+ TEXT
+ ALIGN(16)
+PROLOGUE(mpn_mul_1)
+ FUNC_ENTRY(4)
+ xor %r8, %r8
+L(com): mov (up), %rax
+ lea -16(up,n_param,8), up
+ lea -8(rp,n_param,8), rp
+ test $1, R8(n_param)
+ jnz L(bx1)
+
+L(bx0): mov %r8, %r9
+ test $2, R8(n_param)
+ jnz L(b10)
+
+L(b00): mov $2, R32(n)
+ sub n_param, n
+ jmp L(lo0)
+
+L(bx1): test $2, R8(n_param)
+ jnz L(b11)
+
+L(b01): mov $3, R32(n)
+ sub n_param, n
+ mul v0
+ cmp $2, n
+ jnz L(lo1)
+ jmp L(cj1)
+
+L(b11): mov $1, R32(n)
+ sub n_param, n
+ jmp L(lo3)
+
+L(b10): xor R32(n), R32(n)
+ sub n_param, n
+ jmp L(lo2)
+
+L(top): mul v0
+ mov %r9, -24(rp,n,8)
+L(lo1): xor %r9d, %r9d
+ add %rax, %r8
+ mov (up,n,8), %rax
+ adc %rdx, %r9
+ mov %r8, -16(rp,n,8)
+L(lo0): xor %r8d, %r8d
+ mul v0
+ add %rax, %r9
+ mov 8(up,n,8), %rax
+ adc %rdx, %r8
+ mov %r9, -8(rp,n,8)
+L(lo3): xor %r9d, %r9d
+ mul v0
+ add %rax, %r8
+ mov 16(up,n,8), %rax
+ adc %rdx, %r9
+ mov %r8, (rp,n,8)
+L(lo2): xor %r8d, %r8d
+ mul v0
+ add %rax, %r9
+ mov 24(up,n,8), %rax
+ adc %rdx, %r8
+ add $4, n
+ js L(top)
+
+L(end): mul v0
+ mov %r9, -8(rp)
+L(cj1): add %rax, %r8
+ mov $0, R32(%rax)
+ adc %rdx, %rax
+ mov %r8, (rp)
+ FUNC_EXIT()
+ ret
+EPILOGUE()
+
+PROLOGUE(mpn_mul_1c)
+ FUNC_ENTRY(4)
+IFDOS(` mov 56(%rsp), %r8 ')
+ jmp L(com)
+EPILOGUE()
+ASM_END()